Synthesis of a Palladium Dimer Supported by a C-Bound Trifluoroacetonate Bridge Formed by Cleavage of a Hexafluoroacetylacetonate Ligand.

ABSTRACT: Palladium(II) hexafluoroacetylacetonate (Pd(Hfacac)₂) is known to form adducts of bases, such as lutidine (2,6-dimethylpyridine). When treated with approximately 3 equiv of lutidine, Pd(Hfacac)₂ yields a 1:1 complex as reported in the literature, Pd(O,O-Hfacac)(C-Hfacac)(lutidine), 1. However, when the amount of excess lutidine is increased, a new complex, 2, is formed. A single-crystal X-ray structure of 2 proves it is a rare example of a dimeric palladium complex containing two Pd(Hfacac)(lutidine) fragments bridged by a dianionic trifluoroacetonate ligand, μ-CHC(O)CF₃. The formation of 2 is accompanied by a white precipitate determined to be a mixture of trans-Pd(O₂CCF₃)_2<

SUBMITTER: Byrne P 

PROVIDER: S-EPMC11389688 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature